what parts from my 390 will fit 428

[burpa]

I have a 428 super cobra jet short block circa1970 , a friend of mine just gave me a 390 complete (1965).
What parts can I use to complete the 428 from the 390?

[chris401]

65 had the C4AE G heads. Good breathing iron head.

[jayb]

You should be able to use the whole top end from the 390 engine on the 428 short block.  The heads and intake won't be as good as the 428CJ stuff, but it will fit, as will the pushrods, rockers and shafts, etc.